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20121222
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technology. as the ship makes its way northward, the ice thickens to a depth of about four meters. the odin is now barely making headway. speed is about three knots or just over 5.5 kilometers an hour -- about the same as a person walking. the icebreaker turns on word but then fog descends, shrouding the expedition and the ice for days on end. >> we cannot use the helicopter to determine the best course. visibility is minimal. sometimes the boat works itself free and the fog lifts. then you can see a channel about 100 meters away. >> but somehow, they keep making headway. if you have gone this far, turning back is harder. when the ice fins, they try surveying again and lower the dredge to a depth of 3,000 meters to gather samples -- when the ice thins. the geologists hope the stone will be similar in composition to that of greenland. could this be evidence that proves the ridge is danish? >> this is a sign that these rocks are about to split. an expert back home will have to analyze it. >> they have reached the north pole. >> welcome to the north pole. it is odin's seventh time on the north
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